Submarine boat.



H. E. GRIESHABER.

SUBMARINE BOAT.

APPLICATION HLED JULY 28.1915.

Eatented June 20, 1916.

2 SHEETS-SHEET 1.

INVENTOR H H| H| HHHHHHH H W W A o H.E.GRIESHABER N SUBMARINE BOAT.

APPLICATION FILED JULY 28, I915.

Ill. 9 1i. 8K522 I Patented June 20, 1916.

I 2 SHEETS-7SHEET 2- 12 1 1f 4 F f 6 spider 16 secured within the t the upper face of'this casting is a circular boss which receives the lower end of the ventilator tube 7, the lower end of the tube being secured within the boss 10 by a'watertight joint. The tube 7 extends upwardly to a point a short distance below the top wall of the sheers 6 and that wall has an upon its upper and'lower faces and its lower. ,face is adaptedtoengage the upper end of tube 'Z. The upper face of the member ll is adapted to engage the ring 13 of a casting 14, shaped to facilitate securing it to the upper'end of tube 7 and to the overlying wall of thesheers. L'lhe valve-member 11 is mounted upon the upper endof a .rod 15 which passes through and is uided by a u e 7. At its lower end, the rod 15 passes through. a suit able stuliing-box 1'? in the wall of the casting 8, and its lower end is connected to an operating handle 18 pivotally mounted upon the casting 8. y

A second. means le -pro ldedvfor controlling the passage throughwthe ventilator tube I 7, this second. means being located within or close tothe hull ofthe boat. In the presto be submerged, the valve-memben-' 11 is lator tube is closed by the valve-member 11. However, air may enter the space within the Sheers freely through the scuppers of the superstructure, and such ain may pass down through the ventilator tube to the vinterior of theboat. Obviously, it will be practically impossiblefor Waves or spray to cause water to follow this path for air and thus enter the interior of the boat. When the boat is moved by manipulation of the handle 18 to the lower position in which it coacts with and closes the upper end of the ventilator tube 7, and when the boat is submergid, the space within the sheers is filled by water entering through the scuppers of the superstructure and the opening in the top, wall of the slicers. The pressure of this water upon the upper surface of the valve-member 11 aids in holding the latter tightly-upon its seat on the upper endof the tube '7. At the same time, the valve-member 11 is free to be lifted from its seat by air pressure on the under side thereof. It the pressure conditions within the boat were to rise to a dangerously high point, a predetermined excess or" the air pressure on the under side of the valve-member "11 over the pressure of the water upon the upper side ofthe valve-member, would cause raising of the valve suflicient to relieve such excessive pressure conditions.

it will be noted that the provision of the second valve-member 19 at the base of the ventilator tube permits of closing the passage for the entrance of air 1n case the sheers and ventilator tube were carried away.

ent instance, a second valve-member 19. is,

shown within the castings mounted upon a shaft 20, so that it can be moved to the open position shown in Fig. 3. in the latter position, the valve engages a lip 21 formedabout the outlet opening in the wall of the casting 8. From this outlet opening, a con duit 22 leads to any desired point within the boat. The shaft extends through an opening in the casting 8. and is provided wi 'han operating handle 23. p it will be noted that the inclosure for the the ventilator is therefore open.-

outer end of the ventilator tube is provided with an opening located at a distance from the end of the tube. in the present instance, the space within the sheers is shown as in open communication with the space within the superstructure 5, so the opening referred to consists of the scupp'ers shown at 24; in the wall of the superstructure.

When the boat is proceeding upon the surface of the sea, the valve-member 11 is m moved tothe upper position in which it is In some instances, it'is prefei'red to make provision for locking the valve-member l1 in'it-s upper or lower position. This may be member with a thread coacting with a thread in the wall of an opening in the casting '8, as is shown at 25 in Fig. 3, and a hand wheel 26 is then provided upon the lower end of the rod 15. With this construction, the valve-member 11 may be read ily moved to one or the other of itsoperative positions by turning the handle 26. If desired, the valve-member may be mounted upon the end of the rod in such manner as to permit of turning of the rod independently of the valve-member.

While I have illustrated the embodiment of my invention which I prefer to employ, I wish it understood that the invention is not limited to the construction illustrated but that on the contrary, various changes in the construction may be made without departing from the spirit of the invention. In particular, I Wish it understood that the invention is not limited with respect to the character of the inclosure employed for ijng outer end of the ventilator tube, forwhile I have found it convenient and desirable to employ the sheers as the inclosing structure,

done by providing the shaft of the valve- 7 position shown in Fig. acme-at closed iii E may'likewise employ the superstructure of the heat or some other incloslng structure sp ally provided for use in conjunction it. ventilator tube.

a I claim is:

:Tn a-suhmarine boat, the coznhination of a huii, a ventilator leading to interior thereof, an inclosure for the outer end of the ventilator having an opening therethrough, a valve-member and means for moving the alve-member to close the passage through the ventilator or to open that passage and close said opening through the inclosure, said inclosure having a second opening therethrough Which is distant from the outer end of the ventilator; substantially as described.

2.4111 a submarine boat, the combination "of a hull, a ventilator projeeting-therefrom and coininunicatlng With the interior of the huii, a structure mounted on the hull and inclosing the portion of the ventilator entside the null and having an opening therethrough, a valve-member and means open able from Within the boat for moving the valve-member to close the passage through the ventilator or open that passage and close from with therethre ram,

the hail through, a able from i vaive-nieniher to Q3 the ventilaa the epe structure through and said moved to tiiater 3, heat: so"

in of a hull a struetu closing the portion e the hull and through, erahle from valve-mei the through the ventilator or epen that and close the opening three i said structure, and a second vaivememner operahie from within the heat to and open the peesage through the ventilator, s: structure having a second opening th rough Whieh is distant from end ei tne ventiiator; substantially as deeeri ed,

In testimony whereof I my signature.

means ep- IJG'J E.

I n A 4 t'agpiee of this patent may he obtained for five eents eaeh, by afieressmg me "flnramisaiener er Eat-eats,

' Washington, 3.

.rer moving the 

